NC7SB3257
AC Electrical Characteristics
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| TA = − 40° C to + 85° C |
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Symbol | Parameter | VCC | CL = | 50 pF, RU = | RD = 500Ω | Units |
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| (V) | Min | Typ | Max |
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tPHL | Propagation Delay Bus to Bus | 4.0 − | 55 |
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| 0.25 | ns | VI = | OPEN | Figures |
tPLH | (Note 6) |
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| 1, 2 | |||
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tPZL | Output Enable Time | 4.5 − | 5.5 | 1.8 |
| 6.5 | ns | VI = | 7V for tPZL | Figures |
tPZH |
| 4.0 | 1.8 |
| 7.3 | VI = | 0V for tPZH | 1, 2 | ||
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tPLZ | Output Disable Time | 4.5 − | 5.5 | 0.8 |
| 4.7 |
| VI = | 7V for tPLZ | Figures |
tPHZ |
| 4.0 | 0.8 |
| 5.3 |
| VI = | 0V for tPHZ | 1, 2 | |
Break Before Make Time | 4.5 − | 5.5 | 0.5 |
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| Figure 3 | |
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(Note 7) | 4.0 | 0.5 |
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Note 6: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On Resis- tance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
Note 7: Guaranteed by design.
Capacitance (Note 8)
Symbol | Parameter | Typ | Max | Units | Conditions | |
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CIN | Control Pin Input Capacitance | 2.3 |
| pF | VCC = | 0V |
B Port OFF Capacitance | 5.7 |
| pF | VCC = | 5.0V | |
A Port ON Capacitance | 16 |
| pF | VCC = | 5.0V | |
Note 8: Capacitance is characterized but not tested.
www.fairchildsemi.com | 4 |
